Data Sheet 1_The effects of PRRS on the environmental impact of pig production: a life cycle assessment study.pdf

The Porcine Reproductive and Respiratory Syndrome (PRRS) is a viral pig disease that increases mortality rates and reduces (re)production performance. This worsens a farm’s whole-enterprise feed conversion ratio, which increases its greenhouse gas emission. PRRSV elimination should then result in mitigation of global warming. This study quantifies such mitigation of global warming and of other environmental impact categories such as eutrophication and land use by Life Cycle Assessment. The software package openLCA converted material and energy flows to impact categories of frameworks ReCiPe-2016, PEF-3.1, and IPCC-2021. Flows came from data recorded on 173 PRRS outbreaks in 113 sow farms (1.3 million sows), and on 5,650 all-in-all-out groups of wean-to-finish pigs in 63 farms (26 million pigs). We find that the environmental impact of PRRSV-negative North American farms is 4–6% lower than of the North American industry average (a mix of PRRSV-negative and PRRSV-positive farms), and 9–17% lower than of PRRSV-positive farms.

猪繁殖与呼吸综合征（Porcine Reproductive and Respiratory Syndrome, PRRS）是一种病毒性猪病，可提高生猪死亡率并降低繁殖生产性能。该疾病会恶化猪场全企业级的饲料转化率，进而增加温室气体排放。因此清除猪繁殖与呼吸综合征病毒（PRRSV）可缓解全球变暖。本研究借助生命周期评估（Life Cycle Assessment, LCA），量化了该病毒清除对全球变暖以及富营养化、土地利用等其他环境影响类别的缓解程度。软件包openLCA将物质与能量流转换至ReCiPe-2016、PEF-3.1及IPCC-2021三类评估框架的影响类别中。本研究的数据来源于113个母猪场（共计130万头母猪）中记录的173次PRRS暴发事件，以及63个猪场的5650批“全进全出”式断奶育肥猪群（共计2600万头生猪）。研究结果显示：北美地区猪繁殖与呼吸综合征病毒阴性猪场的环境影响较北美行业平均水平（由病毒阴性与阳性猪场混合组成）低4%~6%，较病毒阳性猪场低9%~17%。